<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.header{height:60px;background: #e3e3e3;text-align: center;}
.banner{height:450px;background: black;line-height: 450px;
text-align: center;font-size: 8em;}
.footer{height: 80px;text-align: center;background: red;}	
</style>
</head>
<body>
	<div class="heaer">
		header
	</div>
	<div class="banner">
		HELLO worlD 
	</div>
	<div class="footer">
		...
	</div>
</body>
</html>